28 HORTUS GRAMINEUS VVOBURNENSIS. 



ARISTID A selifoUa, per. bristly-leaved, nat. S. Amer. 



bromoides,per. broom-like, nat. S. Amer. 



coarctata, per. crowded, nat. S. Amer. 



spadicea, ami. nat. S. Amer. 



reciirvata, per. nat. Island St. Thomas. 



calycina, per. nat. N. HoU. 



ramosa, per. nat. N. Hell. 



dichotomus, bien. nat. Carolina. 



pungens, per. pungent-leaved, nat. Sfax Desert. 



stipoides, per. nat. N. Holl. 



hygromatricum, per. nat. New Holland. 



ciliata, per. ciliated, nat. Barbary. 



murina, per. wall awned-grass, allied to Hordeum niu- 

 rinuni. 



rigida, per. rigid, nat. Philippine Isles. 



laxa, per. loose, nat. Philippine Isles and Montevideo. 

 ^ longe spicata, long-spiked, nat. Carolina. 



vagans, per. divaricated panicled, nat. N. Holl. 



ternipes, per. alternate branched, nat. Panama. 



elegans, per. elegant, nat. S. Amer. 



rigescens, per. stiif-leaved, nat. E. Indies. 



uniplumis, per. one-feathered, nat. C. G. H. 



congesta, per. nat. Cape of Good Hope. 

 KNAPPIA. Knapp's Grass. Generic character: ca/yx 

 one-flowered, t.wo-valved, truncated; corolla like hairs, 

 united at the base, puallel, enclosing the fructification. 



agrostidea, ami. bent-like Knapp's grass, indig. May. 



Sect. V. Grasses with three stamina, two styles; calyx 

 one-Jiowered, bisexual ; corolla two valves. 



PASPALUS. Finest-flower grass. Generic character : 

 calyx two-valved, one-flowered ; corolla two-valved, 

 valves roundish, cartilaginous, convex on the outside, 

 and rather inflex at the base ; stigmas pencil-form ; seed, 

 husks permanently closed on the seed, which is com- 

 pressed, and convex on one side. 



tnembranaceus, per. membranaceous, nat. Carolina ? 



ceresia elegans, per. A p. 



Stella t us, per. starry, nut. S. Amer. 



